Title :
A microwave radio for Doppler radar sensing of vital signs
Author :
Droitcour, A. ; Lubecke, V. ; Jenshan Lin ; Boric-Lubecke, O.
Author_Institution :
Dept. of Electr. Eng., Stanford Univ., CA, USA
Abstract :
A microwave radio for Doppler radar sensing of vital signs is described. This radio was developed using custom DCS1800/PCS1900 base station RFICs. It transmits a single tone signal, demodulates the reflected signal, and outputs a baseband signal. If the object that reflects the signal has periodic motion, the magnitude of the baseband output signal is directly proportional to the periodic displacement of the object. When the signal is reflected off a person´s chest, this radio with appropriate baseband filters can detect heart and respiration rates from a distance as large as one meter from the target.
Keywords :
BiCMOS integrated circuits; Doppler radar; UHF integrated circuits; biomedical communication; biomedical electronics; cardiology; patient monitoring; radar applications; radio applications; transceivers; 1 m; BiCMOS ICs; Doppler radar sensing; baseband filters; baseband signal output; custom DCS1800/PCS1900 base station RFICs; heart rate detection; microwave radio; object periodic displacement; object periodic motion; reflected signal demodulation; respiration rate detection; single tone signal transmission; vital signs sensing; Base stations; Baseband; Costs; Doppler radar; Heart; Impedance matching; RF signals; Radio frequency; Radiofrequency amplifiers; Remote monitoring;
Conference_Titel :
Microwave Symposium Digest, 2001 IEEE MTT-S International
Conference_Location :
Phoenix, AZ, USA
Print_ISBN :
0-7803-6538-0
DOI :
10.1109/MWSYM.2001.966866
